As to your suggestions - we do have "Humidity" and "Dew point" as individual layers but not a combination of these two + air temperature as a "Heat index" layer, the same with "Windchill" (wind speed + air temperature). It's not our priority at this moment, but we will certainly think about it! All the best ~ Marie

Just to make sure that I am getting it right:

Heat index = a quantity expressing the discomfort felt as a result of the combined effects of the temperature and humidity of the air.

Windchill = a quantity expressing the effective lowering of the air temperature caused by the wind, especially as affecting the rate of heat loss from an object or human body or as perceived by an exposed person.